OPC Studio User's Guide and Reference
DefaultEventQueueSize Property (EasyEngineParameters)



OpcLabs.EasyOpcClassicCore Assembly > OpcLabs.EasyOpc.Engine Namespace > EasyEngineParameters Class : DefaultEventQueueSize Property
Default event queue size. The maximum size of the queue each client object uses to temporarily hold generated events before they are consumed by the application. Events that do not fit into the queue will be lost. You should set the size to a number that is sufficient to cope with the difference between the rate events are generated and the rate your application is able to consume them.
Syntax
'Declaration
 
<DataMemberAttribute()>
<ValueRangeAttribute(1, 2147483647)>
Public Property DefaultEventQueueSize As Integer
'Usage
 
Dim instance As EasyEngineParameters
Dim value As Integer
 
instance.DefaultEventQueueSize = value
 
value = instance.DefaultEventQueueSize
[DataMember()]
[ValueRange(1, 2147483647)]
public int DefaultEventQueueSize {get; set;}
[DataMember()]
[ValueRange(1, 2147483647)]
public:
property int DefaultEventQueueSize {
   int get();
   void set (    int value);
}

Property Value

Valid values of this property are in the range from 1 to 2147483647 (Int32.MaxValue).

The default value of this property is 100000.

Exceptions
ExceptionDescription

The value of an argument is outside the allowable range of values as defined by the invoked method.

This is a usage error, i.e. it will never occur (the exception will not be thrown) in a correctly written program. Your code should not catch this exception.

Remarks

This property is used by following client implementations:

Requirements

Target Platforms: .NET Framework: Windows 10 (selected versions), Windows 11 (selected versions), Windows Server 2016, Windows Server 2022; .NET: Linux, macOS, Microsoft Windows

See Also